Привет! Давай вместе решим эти примеры на сложение и вычитание смешанных чисел, а заодно и узнаем имя известного математика.
Сначала решим примеры, а потом сопоставим ответы с буквами и узнаем имя математика.
3 \[\frac{2}{5}\] + 4 \[\frac{3}{5}\] = (3 + 4) + (\[\frac{2}{5}\] + \[\frac{3}{5}\]) = 7 + \[\frac{5}{5}\] = 7 + 1 = 8
6 \[\frac{3}{7}\] - 2 \[\frac{2}{7}\] = (6 - 2) + (\[\frac{3}{7}\] - \[\frac{2}{7}\]) = 4 + \[\frac{1}{7}\] = 4\[\frac{1}{7}\]
1 \[\frac{7}{13}\] + 4 \[\frac{8}{13}\] = (1 + 4) + (\[\frac{7}{13}\] + \[\frac{8}{13}\]) = 5 + \[\frac{15}{13}\] = 5 + 1\[\frac{2}{13}\] = 6\[\frac{2}{13}\]
8 - 3 \[\frac{5}{9}\] = (8 - 3) - \[\frac{5}{9}\] = 5 - \[\frac{5}{9}\] = 4\[\frac{9}{9}\] - \[\frac{5}{9}\] = 4\[\frac{4}{9}\]
10 \[\frac{6}{13}\] - 4 = (10 - 4) + \[\frac{6}{13}\] = 6\[\frac{6}{13}\]
5 + 2 \[\frac{4}{5}\] = (5 + 2) + \[\frac{4}{5}\] = 7\[\frac{4}{5}\]
7 - \[\frac{3}{7}\] = 6 \[\frac{7}{7}\] - \[\frac{3}{7}\] = 6\[\frac{4}{7}\]
8 \[\frac{2}{5}\] - 4 \[\frac{3}{5}\] = (8 - 4) + (\[\frac{2}{5}\] - \[\frac{3}{5}\]) = 4 - \[\frac{1}{5}\] = 3 \[\frac{5}{5}\] - \[\frac{1}{5}\] = 3\[\frac{4}{5}\]
9 \[\frac{4}{13}\] - 5 \[\frac{4}{13}\] = (9 - 5) + (\[\frac{4}{13}\] - \[\frac{4}{13}\]) = 4 + 0 = 4
2 \[\frac{9}{11}\] + 5 \[\frac{4}{11}\] = (2 + 5) + (\[\frac{9}{11}\] + \[\frac{4}{11}\]) = 7 + \[\frac{13}{11}\] = 7 + 1\[\frac{2}{11}\] = 8\[\frac{2}{11}\]
6 \[\frac{4}{11}\] - 2 \[\frac{7}{11}\] = (6 - 2) + (\[\frac{4}{11}\] - \[\frac{7}{11}\]) = 4 - \[\frac{3}{11}\] = 3 \[\frac{11}{11}\] - \[\frac{3}{11}\] = 3\[\frac{8}{11}\]
12 \[\frac{2}{9}\] - (5 \[\frac{7}{9}\] + 2 \[\frac{4}{9}\]) = 12 \[\frac{2}{9}\] - (7 \[\frac{11}{9}\]) = 12 \[\frac{2}{9}\] - 8 \[\frac{2}{9}\] = 4
12 \[\frac{6}{7}\] - (2 \[\frac{4}{7}\] + 3 \[\frac{5}{7}\]) = 12 \[\frac{6}{7}\] - 5 \[\frac{9}{7}\] = 12 \[\frac{6}{7}\] - 6 \[\frac{2}{7}\] = 6\[\frac{4}{7}\]
3 \[\frac{5}{13}\] + 4 \[\frac{7}{13}\] - 1 \[\frac{10}{13}\] = (3 + 4 - 1) + (\[\frac{5}{13}\] + \[\frac{7}{13}\] - \[\frac{10}{13}\]) = 6 + \[\frac{2}{13}\] = 6\[\frac{2}{13}\]
(7 - 4 \[\frac{9}{11}\]) + 1 \[\frac{6}{11}\] = 2 \[\frac{2}{11}\] + 1 \[\frac{6}{11}\] = 3 \[\frac{8}{11}\]
1 \[\frac{7}{9}\] + \[\frac{5}{9}\] + 1 \[\frac{6}{9}\] = 2 + \[\frac{18}{9}\] = 2 + 2 = 4
(7 \[\frac{3}{5}\] + 2 \[\frac{2}{5}\]) - 2 \[\frac{1}{5}\] = 9\[\frac{5}{5}\] - 2\[\frac{1}{5}\] = 10 - 2\[\frac{1}{5}\] = 7\[\frac{4}{5}\]
| Е | Д | Н | Б | Ф | А | Ч | Р | О | Л | И |
| 8 | 4\[\frac{1}{7}\] | 6\[\frac{2}{13}\] | 4\[\frac{4}{9}\] | 6\[\frac{6}{13}\] | 7\[\frac{4}{5}\] | 6\[\frac{4}{7}\] | 3\[\frac{4}{5}\] | 4 | 8\[\frac{2}{11}\] | 3\[\frac{8}{11}\] |
Теперь посмотрим на номера заданий, которые соответствуют буквам в сетке:
Сопоставляем ответы с буквами:
Д = 4\[\frac{1}{7}\]
Л = 3\[\frac{8}{11}\]
О = 4
Н = 6\[\frac{2}{13}\]
А = 7\[\frac{4}{5}\]
Р = 3\[\frac{4}{5}\]
Д = 4\[\frac{1}{7}\]
О = 4
Получается имя: Леонардо.
Ответ: Леонардо
Отлично! Ты справился с решением всех примеров и узнал имя известного математика. Продолжай в том же духе!